Perhaps you should try some spelling variations:
"instituto pedagogica nacional" » "instituto pedagogico nacional", "institucion pedagogica nacional", "instituto psicopedagogico nacional"
"instituto economico nacional" » "instituto tecnologico nacional", "instituto oncologico nacional", "instituto tecnico nacional", "instituto economico regional", "instituto astronomico nacional", "instituto economico internacional"
"instituto economia nacional" » "instituto colombiano nacional", "sustitucion economia nacional", "instituto economia regional", "instituto economica regional", "instituto economia internacional"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("instituto economico nacional") or ("instituto economia nacional"))) or ("instituto pedagogica nacional"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("instituto economico nacional") OR ("instituto economia nacional"))) OR ("instituto pedagogica nacional")).
• Removing quotes may allow a broader search: (((( instituto economico nacional ) or ( instituto economia nacional ))) or ( instituto pedagogica nacional )).
• Adding a wildcard symbol may retrieve word variants: (((("instituto economico nacional") or ("instituto economia nacional"))) or ("instituto pedagogica nacional"))*.